What's going on with this dime???

I have been busting open proof sets with scratched up plastic to throw the coins in my bargain bin, and I pulled this dime out. I noticed it looks like it has a fight with the reeding machine. I pulled it out of a sealed proof set but I guess anything is possible.
Is this an error? If so can someone explain how it happened?
It may be post mint damage but like I said someone would of had to make it then seal it back in a proof set.
1
Comments
Packaging damage.
Vice grips?
Damaged after it was struck so it is damage.
It got damaged after the mint somewhere
I've seen that type of damage caused by heat sealing machines for the cellophane type packaging (proofs and mint set coins) but who knows about the hard plastic set holders. Definitely PMD though
"When they can't find anything wrong with you, they create it!"
Maybe I should try to keep making the marks all the way around it and make a modern day pie crimper
HAPPY COLLECTING
I sent you a PM
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It does look like it could have been done when the coin was being sealed in the mylar/cello pack. That would make it PMD.... Great pictures. If it did happen that way, I am surprised we have not seen more such issues. Cheers, RickO
I have definitely seen this on other Mint set coins, it is damage from the crimp / seal bars for the cello.
Sean Reynolds
"Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
But the OP coin is a proof. The proof sets did not come in Cello.
Paper money eventually returns to its intrinsic value. Zero. Voltaire. Ebay coinbowlllc
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Fantastic picture!
There is no reeding machine
Reeding is imparted when struck via reeding on the collar
It's a damaged Proof coin -
whether it was done at some point
in the sealing operation of the hard
plastic case, or later, it's damaged.